Plenum

Definition

A plenum is an air compartment connected to a duct or ducts, allowing for the circulation of HVAC systems.

Purpose

Plenums are essential components of HVAC systems, used to distribute conditioned air throughout a building. They serve as central points where air is collected from heating, ventilation, and air conditioning units and then distributed through ductwork to various parts of the building.

Examples of Use

• Commercial Buildings: Plenums distribute conditioned air to offices, lobbies, and other areas.
• Residential Homes: Used in home HVAC systems to manage air distribution and improve efficiency.
• Cleanrooms: Ensure even air distribution and maintain air quality in controlled environments.

Related Terms

• Ductwork: The system of ducts used to distribute air in HVAC systems.
• Air Handler: A device used to regulate and circulate air as part of an HVAC system.
• Return Air Plenum: A compartment used to collect air from occupied spaces and return it to the HVAC system for reconditioning.

Notes

• Design: Proper design of plenums is crucial for efficient air distribution and maintaining indoor air quality.
• Materials: Plenums can be constructed from various materials, including metal, fiberglass, and insulated panels.